Canon Doctor Who/Torchwood Character. Omnisexual(According to John Barrowman),Iantoloving,Immortal, Ex-Time Agent from the Boeshane Peninsula in the 51st century. Companion of the 9th Doctor and temporary companion of the 10th. Actor is John Barrowman. Extremely flirty and extremely fabulous.

"Captain Jack Harkness, and you are?" Jack was trying to flirt. "Oi! Stop it!" There was a noise in the background.